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AP EAMCET202319 May 2023Morning ShiftMathematicsThree Dimensional GeometryActual

If a straight line is equally inclined at an angle with all the three coordinate axes, then =

Options

  1. A2 2
  2. B2
  3. C1
  4. D1+ 5

Correct answer

B. 2

Step-by-step solution

Since the line is making equal angle with the 3 co-ordinate axes. Hence = = = l=m=n= We know that, l^2+m^2+n^2=1 aligned & 3 l^2=1 l= 1 3 & = 1 3 = 2 3 aligned Hence = = 2

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